Evidence map›Paper›PMID 33044988›Full record

ArticlePloS one2020

Kahweol activates the Nrf2/HO-1 pathway by decreasing Keap1 expression independently of p62 and autophagy pathways.

Hye-Young Seo, So-Hee Lee, Ji-Ha Lee, Jae Seok Hwang, Mi Kyung Kim, Byoung Kuk Jang

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.0field-weighted citation impact, top 25% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

9 citing papers in PubMed, 21 citations in OpenAlex.

  1. Article
  2. Effects ofInternational journal of molecular sciences · 2026
    Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Antioxidants (Basel, Switzerland) · 2022
    Article
  8. Review
  9. Kahweol Exerts Skin Moisturizing Activities by Upregulating STAT1 Activity.International journal of molecular sciences · 2021
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 1 institution in 1 country.

Hye-Young SeoDepartment of Internal Medicine, School of Medicine, Institute for Medical Science, Keimyung University, Daegu, South Korea.
So-Hee LeeDepartment of Internal Medicine, School of Medicine, Institute for Medical Science, Keimyung University, Daegu, South Korea.
Ji-Ha LeeDepartment of Internal Medicine, School of Medicine, Institute for Medical Science, Keimyung University, Daegu, South Korea.
Jae Seok HwangDepartment of Internal Medicine, School of Medicine, Institute for Medical Science, Keimyung University, Daegu, South Korea.
Mi Kyung KimDepartment of Internal Medicine, School of Medicine, Institute for Medical Science, Keimyung University, Daegu, South Korea.
Byoung Kuk JangDepartment of Internal Medicine, School of Medicine, Institute for Medical Science, Keimyung University, Daegu, South Korea.ORCID 0000-0002-8950-0866
Keimyung University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Kahweol is a diterpene found in coffee beans and unfiltered coffee drinks. Several studies have demonstrated that kahweol induces the nuclear factor erythroid-2 related factor 2/ hemeoxygenase-1 (Nrf2/HO-1) pathway; however, the mechanisms involved are currently unknown. Kelch-like ECH-associated protein 1 (Keap1) is a major regulator of Nrf2 expression and is degraded mostly by autophagy. The p62 protein enhances binding to Keap1 and contributes to the activation of Nrf2. Here, we examined the role of Keap1 regulation in the effect of kahweol on the Nrf2/HO-1 pathway in hepatocytes. In AML12 cells and primary mouse hepatocytes, kahweol increased the levels of Nrf2 and HO-1 protein without increasing expression of the Nrf2 mRNA. In addition, kahweol reduced Keap1 protein levels significantly without decreasing Keap1 mRNA levels. Although regulation of the Keap1-Nrf2-pathway by p62-dependent autophagy is well known, we confirmed here that the reduction of Keap1 protein levels by kahweol does not involve p62-dependent autophagy degradation or ubiquitination. In conclusion, kahweol increases the expression of Nrf2 in hepatocytes by inhibiting translation of the Keap1 mRNA.

Indexed as

AnimalsAntioxidantsApoptosisAutophagyAutophagy-Related Protein 7Cells, CulturedCell SurvivalDiterpenesHeme Oxygenase-1HepatocytesHydrogen PeroxideMaleMembrane ProteinsMiceMice, Inbred C57BLMice, KnockoutAntioxidantsAtg7 protein, mouseAutophagy-Related Protein 7DiterpenesHeme Oxygenase-1Hmox1 protein, mouseHydrogen PeroxidekahweolMembrane ProteinsNfe2l2 protein, mouseNF-E2-Related Factor 2Reactive Oxygen SpeciesRNA-Binding ProteinsUbiquitin

Identifiers

PMID33044988
PMCPMC7549774
OpenAlexW3092461657

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.